25113291 has 16 divisors (see below), whose sum is σ = 38918400. Its totient is φ = 14106528.

The previous prime is 25113289. The next prime is 25113329. The reversal of 25113291 is 19231152.

It is not a de Polignac number, because 25113291 - 2¹ = 25113289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25113211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8896 + ... + 11373.

It is an arithmetic number, because the mean of its divisors is an integer number (2432400).

Almost surely, 2^25113291 is an apocalyptic number.

25113291 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25113291 is a deficient number, since it is larger than the sum of its proper divisors (13805109).

25113291 is a wasteful number, since it uses less digits than its factorization.

25113291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20338.

The product of its digits is 540, while the sum is 24.

The square root of 25113291 is about 5011.3162941487. The cubic root of 25113291 is about 292.8427948326.

The spelling of 25113291 in words is "twenty-five million, one hundred thirteen thousand, two hundred ninety-one".